/* Form Component System
 * Consolidated form elements and validation styles
 * Requirements: 2.1, 2.3
 */

/* Base form styles */
.form {
    width: 100%;
    max-width: 100%;
}

.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-group:last-child {
    margin-bottom: 0;
}

/* Form labels */
.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #374151;
    font-size: 0.875rem;
    line-height: 1.25rem;
}

.form-label.required::after {
    content: ' *';
    color: #ef4444;
}

/* Base input styles */
.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    line-height: 1.5;
    color: #374151;
    background-color: #ffffff;
    background-image: none;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    transition: all 0.2s ease-in-out;
    box-sizing: border-box;
    
    /* Remove default appearance */
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(129, 222, 118, 0.1);
    background-color: #ffffff;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: #9ca3af;
    opacity: 1;
}

/* Input sizes */
.form-input-sm,
.form-select-sm,
.form-textarea-sm {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    min-height: 36px;
}

.form-input-lg,
.form-select-lg,
.form-textarea-lg {
    padding: 1rem 1.25rem;
    font-size: 1.125rem;
    min-height: 52px;
}

/* Textarea specific styles */
.form-textarea {
    min-height: 100px;
    resize: vertical;
    font-family: inherit;
}

.form-textarea-sm {
    min-height: 80px;
}

.form-textarea-lg {
    min-height: 120px;
}

/* Select specific styles */
.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1rem 1rem;
    padding-right: 2.5rem;
    cursor: pointer;
}

.form-select:focus {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2381de76' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
}

/* Validation states */
.form-group.has-success .form-input,
.form-group.has-success .form-select,
.form-group.has-success .form-textarea,
.form-input.is-valid,
.form-select.is-valid,
.form-textarea.is-valid {
    border-color: #10b981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-group.has-error .form-input,
.form-group.has-error .form-select,
.form-group.has-error .form-textarea,
.form-input.is-invalid,
.form-select.is-invalid,
.form-textarea.is-invalid {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-group.has-warning .form-input,
.form-group.has-warning .form-select,
.form-group.has-warning .form-textarea,
.form-input.is-warning,
.form-select.is-warning,
.form-textarea.is-warning {
    border-color: #f59e0b;
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
}

/* Disabled state */
.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
    background-color: #f9fafb;
    border-color: #e5e7eb;
    color: #9ca3af;
    cursor: not-allowed;
    opacity: 0.6;
}

/* Readonly state */
.form-input[readonly],
.form-select[readonly],
.form-textarea[readonly] {
    background-color: #f9fafb;
    border-color: #e5e7eb;
    cursor: default;
}

/* Form feedback messages */
.form-feedback {
    margin-top: 0.25rem;
    font-size: 0.875rem;
    line-height: 1.25rem;
}

.form-feedback.success,
.form-feedback.valid {
    color: #10b981;
}

.form-feedback.error,
.form-feedback.invalid {
    color: #ef4444;
}

.form-feedback.warning {
    color: #f59e0b;
}

.form-feedback.info {
    color: #3b82f6;
}

/* Form help text */
.form-help {
    margin-top: 0.25rem;
    font-size: 0.875rem;
    line-height: 1.25rem;
    color: #6b7280;
}

/* Checkbox and radio styles */
.form-check {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.form-check:last-child {
    margin-bottom: 0;
}

.form-check-input {
    width: 1rem;
    height: 1rem;
    margin: 0;
    flex-shrink: 0;
    cursor: pointer;
    border: 1px solid #d1d5db;
    border-radius: 0.25rem;
    background-color: #ffffff;
    transition: all 0.2s ease-in-out;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.form-check-input[type="radio"] {
    border-radius: 50%;
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='m13.854 3.646-7.5 7.5a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6 10.293l7.146-7.147a.5.5 0 0 1 .708.708z'/%3e%3c/svg%3e");
    background-size: 0.75rem;
    background-position: center;
    background-repeat: no-repeat;
}

.form-check-input[type="radio"]:checked {
    background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3e%3ccircle cx='8' cy='8' r='3'/%3e%3c/svg%3e");
}

.form-check-input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(129, 222, 118, 0.1);
}

.form-check-input:disabled {
    background-color: #f9fafb;
    border-color: #e5e7eb;
    cursor: not-allowed;
    opacity: 0.6;
}

.form-check-label {
    font-size: 0.875rem;
    line-height: 1.25rem;
    color: #374151;
    cursor: pointer;
    margin: 0;
}

.form-check-input:disabled + .form-check-label {
    color: #9ca3af;
    cursor: not-allowed;
}

/* Toggle switch (from notification preferences) */
.form-toggle {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.form-toggle:last-child {
    margin-bottom: 0;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}

.toggle-input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-label {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #cbd5e1;
    border-radius: 24px;
    transition: all 0.3s ease;
}

.toggle-label:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    border-radius: 50%;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-input:checked + .toggle-label {
    background-color: var(--primary-color);
}

.toggle-input:checked + .toggle-label:before {
    transform: translateX(20px);
}

.toggle-input:focus + .toggle-label {
    box-shadow: 0 0 0 3px rgba(129, 222, 118, 0.1);
}

.toggle-input:disabled + .toggle-label {
    opacity: 0.6;
    cursor: not-allowed;
}

.toggle-label-text {
    font-size: 0.875rem;
    line-height: 1.25rem;
    color: #374151;
    cursor: pointer;
    margin: 0;
}

.toggle-input:disabled + .toggle-label + .toggle-label-text {
    color: #9ca3af;
    cursor: not-allowed;
}

/* Form layouts */
.form-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.form-row:last-child {
    margin-bottom: 0;
}

.form-col {
    flex: 1;
    min-width: 0;
}

.form-col-auto {
    flex: 0 0 auto;
}

.form-col-1 { flex: 0 0 8.333333%; }
.form-col-2 { flex: 0 0 16.666667%; }
.form-col-3 { flex: 0 0 25%; }
.form-col-4 { flex: 0 0 33.333333%; }
.form-col-5 { flex: 0 0 41.666667%; }
.form-col-6 { flex: 0 0 50%; }
.form-col-7 { flex: 0 0 58.333333%; }
.form-col-8 { flex: 0 0 66.666667%; }
.form-col-9 { flex: 0 0 75%; }
.form-col-10 { flex: 0 0 83.333333%; }
.form-col-11 { flex: 0 0 91.666667%; }
.form-col-12 { flex: 0 0 100%; }

/* Input groups */
.input-group {
    display: flex;
    width: 100%;
}

.input-group .form-input {
    border-radius: 0;
    flex: 1;
}

.input-group .form-input:first-child {
    border-top-left-radius: 0.5rem;
    border-bottom-left-radius: 0.5rem;
}

.input-group .form-input:last-child {
    border-top-right-radius: 0.5rem;
    border-bottom-right-radius: 0.5rem;
}

.input-group-prepend,
.input-group-append {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    background-color: #f9fafb;
    border: 1px solid #d1d5db;
    color: #6b7280;
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
}

.input-group-prepend {
    border-right: 0;
    border-top-left-radius: 0.5rem;
    border-bottom-left-radius: 0.5rem;
}

.input-group-append {
    border-left: 0;
    border-top-right-radius: 0.5rem;
    border-bottom-right-radius: 0.5rem;
}

.input-group .form-input:focus {
    z-index: 1;
}

/* File input styles */
.form-file {
    position: relative;
    display: inline-block;
    width: 100%;
}

.form-file-input {
    position: absolute;
    z-index: -1;
    width: 0.1px;
    height: 0.1px;
    opacity: 0;
    overflow: hidden;
}

.form-file-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: #374151;
    background-color: #ffffff;
    border: 2px dashed #d1d5db;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    text-align: center;
    min-height: 100px;
}

.form-file-label:hover {
    border-color: var(--primary-color);
    background-color: rgba(129, 222, 118, 0.05);
}

.form-file-input:focus + .form-file-label {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(129, 222, 118, 0.1);
}

.form-file-text {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.form-file-main {
    font-weight: 600;
}

.form-file-sub {
    font-size: 0.75rem;
    color: #6b7280;
}

/* Mobile optimizations */
@media (max-width: 768px) {
    .form-input,
    .form-select,
    .form-textarea {
        font-size: 16px; /* Prevent zoom on iOS */
        min-height: 44px; /* Touch target size */
    }
    
    .form-input-sm,
    .form-select-sm,
    .form-textarea-sm {
        font-size: 14px;
        min-height: 40px;
    }
    
    .form-input-lg,
    .form-select-lg,
    .form-textarea-lg {
        font-size: 18px;
        min-height: 48px;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .form-col {
        flex: none;
        width: 100%;
        margin-bottom: 1rem;
    }
    
    .form-col:last-child {
        margin-bottom: 0;
    }
    
    .input-group {
        flex-direction: column;
    }
    
    .input-group .form-input {
        border-radius: 0.5rem;
        margin-bottom: 0.5rem;
    }
    
    .input-group .form-input:last-child {
        margin-bottom: 0;
    }
    
    .input-group-prepend,
    .input-group-append {
        border-radius: 0.5rem;
        border: 1px solid #d1d5db;
        margin-bottom: 0.5rem;
    }
    
    .input-group-append {
        margin-bottom: 0;
        margin-top: 0.5rem;
    }
}

/* Payment form specific styles (consolidated from mobile-payment-styles.css) */
.payment-form {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

.payment-input {
    width: 100%;
    min-height: 44px;
    padding: 12px 16px;
    font-size: 16px;
    border-radius: 8px;
    border: 1px solid #d1d5db;
    box-sizing: border-box;
    -webkit-appearance: none;
    appearance: none;
    background: white;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.payment-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(129, 222, 118, 0.1);
}

/* Form validation animations */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.form-group.shake .form-input,
.form-group.shake .form-select,
.form-group.shake .form-textarea {
    animation: shake 0.5s ease-in-out;
}

/* Accessibility improvements */
.form-input:focus-visible,
.form-select:focus-visible,
.form-textarea:focus-visible,
.form-check-input:focus-visible,
.toggle-input:focus-visible + .toggle-label {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .form-input,
    .form-select,
    .form-textarea,
    .form-check-input {
        border-width: 2px;
    }
    
    .toggle-label {
        border: 2px solid #374151;
    }
    
    .toggle-input:checked + .toggle-label {
        border-color: var(--primary-color);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .form-input,
    .form-select,
    .form-textarea,
    .form-check-input,
    .toggle-label,
    .toggle-label:before,
    .form-file-label {
        transition: none;
    }
    
    .form-group.shake .form-input,
    .form-group.shake .form-select,
    .form-group.shake .form-textarea {
        animation: none;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .form-input,
    .form-select,
    .form-textarea {
        background-color: #1f2937;
        border-color: #374151;
        color: #f9fafb;
    }
    
    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
        border-color: var(--primary-color);
        background-color: #1f2937;
    }
    
    .form-label {
        color: #f9fafb;
    }
    
    .form-help {
        color: #9ca3af;
    }
    
    .form-check-input {
        background-color: #1f2937;
        border-color: #374151;
    }
    
    .form-check-label,
    .toggle-label-text {
        color: #f9fafb;
    }
    
    .input-group-prepend,
    .input-group-append {
        background-color: #374151;
        border-color: #4b5563;
        color: #d1d5db;
    }
    
    .form-file-label {
        background-color: #1f2937;
        border-color: #374151;
        color: #f9fafb;
    }
    
    .form-file-label:hover {
        background-color: rgba(129, 222, 118, 0.1);
    }
}